Supplementary Oil And Gas Information (Tables)

12 Months Ended

Dec. 31, 2017

Supplementary Oil And Gas Information [Abstract]



	Oil & NGLs		Natural Gas
	WTI ($/bbl)	Edmonton Condensate (2) (C$/bbl)	Henry Hub ($/MMBtu)	AECO (C$/MMBtu)

Reserves Pricing (1)
2017	51.34	67.65	2.98	2.32
2016	42.75	55.39	2.49	2.17
2015	50.28	61.94	2.58	2.69

Net Proved Reserves


	Oil (MMbbls)			NGLs (MMbbls)			Natural Gas (Bcf)			Total (MMBOE)
	Canada	United States	Total	Canada	United States	Total	Canada	United States	Total
2015
Beginning of year	10.9	194.1	205.0	66.6	90.2	156.7	3,229	2,265	5,494	1,277.4
Revisions and improved recovery (2)	(0.9)	(73.6)	(74.6)	(14.8)	(41.1)	(55.9)	(801)	(342)	(1,144)	(321.1)
Extensions and discoveries	-	68.4	68.4	19.8	24.9	44.7	313	159	472	191.7
Purchase of reserves in place	-	-	-	-	-	-	-	-	-	-
Sale of reserves in place	(1.6)	(1.2)	(2.8)	(0.4)	(3.6)	(4.0)	(434)	(728)	(1,163)	(200.6)
Production	(2.0)	(29.7)	(31.8)	(8.3)	(8.6)	(16.9)	(354)	(241)	(596)	(148.0)
End of year	6.4	157.9	164.3	62.8	61.7	124.5	1,952	1,112	3,064	799.4
Developed	5.0	91.6	96.6	31.8	37.8	69.5	1,295	928	2,223	536.6
Undeveloped	1.3	66.3	67.7	31.0	24.0	55.0	657	184	841	262.8
Total	6.4	157.9	164.3	62.8	61.7	124.5	1,952	1,112	3,064	799.4

2016
Beginning of year	6.4	157.9	164.3	62.8	61.7	124.5	1,952	1,112	3,064	799.4
Revisions and improved recovery (2)	(0.3)	(15.6)	(15.9)	(6.4)	(1.6)	(8.0)	(422)	177	(244)	(64.7)
Extensions and discoveries	-	52.2	52.2	58.1	17.7	75.8	796	91	887	275.7
Purchase of reserves in place	-	9.6	9.6	-	2.6	2.6	-	16	16	14.9
Sale of reserves in place	(5.4)	(22.2)	(27.6)	(11.3)	(15.5)	(26.8)	(163)	(150)	(313)	(106.5)
Production	(0.7)	(26.2)	(27.0)	(9.2)	(8.5)	(17.7)	(354)	(153)	(506)	(129.1)
End of year	-	155.6	155.6	94.0	56.4	150.4	1,810	1,093	2,902	789.7
Developed	-	82.5	82.5	25.6	31.8	57.4	903	951	1,853	448.8
Undeveloped	-	73.1	73.1	68.4	24.6	93.0	907	142	1,049	341.0
Total	-	155.6	155.6	94.0	56.4	150.4	1,810	1,093	2,902	789.7

2017
Beginning of year	-	155.6	155.6	94.0	56.4	150.4	1,810	1,093	2,902	789.7
Revisions and improved recovery (2)	0.2	(16.0)	(15.8)	(14.6)	(3.6)	(18.1)	(31)	(27)	(58)	(43.6)
Extensions and discoveries	0.2	84.9	85.1	46.4	26.5	72.9	727	144	871	303.1
Purchase of reserves in place	-	0.8	0.8	-	0.4	0.4	-	2	2	1.5
Sale of reserves in place	-	(5.4)	(5.4)	(0.2)	(3.6)	(3.8)	(65)	(729)	(795)	(141.6)
Production	(0.2)	(27.7)	(27.8)	(10.6)	(8.7)	(19.3)	(306)	(97)	(403)	(114.3)
End of year	0.2	192.3	192.5	115.0	67.5	182.5	2,135	384	2,519	794.9
Developed	0.2	104.7	104.9	40.5	41.6	82.1	1,082	243	1,325	407.8
Undeveloped	-	87.7	87.7	74.5	25.8	100.3	1,053	141	1,195	387.1
Total	0.2	192.3	192.5	115.0	67.5	182.5	2,135	384	2,519	794.9

Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves


	Canada (1)			United States (1)
	2017	2016	2015	2017	2016	2015

Future cash inflows	$ 7,850	$ 5,341	$ 6,284	$ 11,459	$ 8,537	$ 9,462
Less future:
Production costs	3,516	2,876	3,800	3,661	3,539	3,959
Development costs	2,058	1,949	1,742	3,042	2,805	3,130
Income taxes	76	-	-	-	-	-
Future net cash flows	2,200	516	742	4,756	2,193	2,373
Less 10% annual discount for estimated
timing of cash flows	618	77	107	2,025	957	960
Discounted future net cash flows	$ 1,582	$ 439	$ 635	$ 2,731	$ 1,236	$ 1,413



	Total (1)
	2017	2016	2015

Future cash inflows	$ 19,309	$ 13,878	$ 15,746
Less future:
Production costs	7,177	6,415	7,759
Development costs	5,100	4,754	4,872
Income taxes	76	-	-
Future net cash flows	6,956	2,709	3,115
Less 10% annual discount for estimated
timing of cash flows	2,643	1,034	1,067
Discounted future net cash flows	$ 4,313	$ 1,675	$ 2,048

Changes In Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves


	Canada (1)			United States (1)
	2017	2016	2015	2017	2016	2015

Balance, beginning of year	$ 439	$ 635	$ 4,476	$ 1,236	$ 1,413	$ 7,074
Changes resulting from:
Sales of oil and gas produced during the year	(471)	(316)	(988)	(1,291)	(1,040)	(1,276)
Discoveries and extensions, net of related costs	582	211	109	1,141	267	504
Purchases of proved reserves in place	-	-	-	13	47	-
Sales and transfers of proved reserves in place	(12)	(71)	(674)	(413)	(220)	(1,604)
Net change in prices and production costs	893	20	(3,075)	2,183	325	(3,239)
Revisions to quantity estimates	(22)	(124)	(1,355)	(203)	39	(2,183)
Accretion of discount	44	64	565	124	141	833
Development costs incurred during the period	454	286	460	1,366	873	1,874
Changes in estimated future development costs	(279)	(304)	(13)	(1,433)	(456)	(1,809)
Other	7	38	(45)	8	(153)	(16)
Net change in income taxes	(53)	-	1,175	-	-	1,255
Balance, end of year	$ 1,582	$ 439	$ 635	$ 2,731	$ 1,236	$ 1,413



	Total (1)
	2017	2016	2015

Balance, beginning of year	$ 1,675	$ 2,048	$ 11,550
Changes resulting from:
Sales of oil and gas produced during the year	(1,762)	(1,356)	(2,264)
Discoveries and extensions, net of related costs	1,723	478	613
Purchases of proved reserves in place	13	47	-
Sales and transfers of proved reserves in place	(425)	(291)	(2,278)
Net change in prices and production costs	3,076	345	(6,314)
Revisions to quantity estimates	(225)	(85)	(3,538)
Accretion of discount	168	205	1,398
Development costs incurred during the period	1,820	1,159	2,334
Changes in estimated future development costs	(1,712)	(760)	(1,822)
Other	15	(115)	(61)
Net change in income taxes	(53)	-	2,430
Balance, end of year	$ 4,313	$ 1,675	$ 2,048

Results Of Operations


	Canada			United States
	2017	2016	2015	2017	2016	2015

Oil, NGL and natural gas revenues, net of
transportation and processing	$ 613	$ 491	$ 1,168	$ 1,714	$ 1,510	$ 1,911
Less:
Operating costs, production, mineral and other taxes,
and accretion of asset retirement obligations	164	197	199	438	499	661
Depreciation, depletion and amortization	236	260	305	530	523	1,088
Impairments	-	493	-	-	903	6,473
Operating income (loss)	213	(459)	664	746	(415)	(6,311)
Income taxes	58	(123)	179	161	(150)	(2,285)
Results of operations	$ 155	$ (336)	$ 485	$ 585	$ (265)	$ (4,026)


	Total
	2017	2016	2015

Oil, NGL and natural gas revenues, net of
transportation and processing	$ 2,327	$ 2,001	$ 3,079
Less:
Operating costs, production, mineral and other taxes,
and accretion of asset retirement obligations	602	696	860
Depreciation, depletion and amortization	766	783	1,393
Impairments	-	1,396	6,473
Operating income (loss)	959	(874)	(5,647)
Income taxes	219	(273)	(2,106)
Results of operations	$ 740	$ (601)	$ (3,541)

Capitalized Costs



	Canada			United States
	2017	2016	2015	2017	2016	2015

Proved oil and gas properties	$ 14,555	$ 13,159	$ 14,866	$ 25,610	$ 26,393	$ 25,723
Unproved oil and gas properties	311	285	334	4,169	4,913	5,282
Total capital cost	14,866	13,444	15,200	29,779	31,306	31,005
Accumulated DD&A	14,047	12,896	14,170	23,240	25,300	23,822
Net capitalized costs	$ 819	$ 548	$ 1,030	$ 6,539	$ 6,006	$ 7,183



	Other			Total
	2017	2016	2015	2017	2016	2015

Proved oil and gas properties	$ 63	$ 58	$ 58	$ 40,228	$ 39,610	$ 40,647
Unproved oil and gas properties	-	-	-	4,480	5,198	5,616
Total capital cost	63	58	58	44,708	44,808	46,263
Accumulated DD&A	63	58	58	37,350	38,254	38,050
Net capitalized costs	$ -	$ -	$ -	$ 7,358	$ 6,554	$ 8,213

Costs Incurred


	Canada			United States
	2017	2016	2015	2017	2016	2015

Acquisition costs
Unproved	$ 31	$ -	$ 2	$ 21	$ 4	$ 15
Proved	-	1	7	2	205	12
Total acquisition costs	31	1	9	23	209	27
Exploration costs	1	1	3	4	13	3
Development costs	425	255	377	1,354	860	1,844
Total costs incurred	$ 457	$ 257	$ 389	$ 1,381	$ 1,082	$ 1,874



	Total
	2017	2016	2015

Acquisition costs
Unproved	$ 52	$ 4	$ 17
Proved	2	206	19
Total acquisition costs	54	210	36
Exploration costs	5	14	6
Development costs	1,779	1,115	2,221
Total costs incurred	$ 1,838	$ 1,339	$ 2,263

Cost Not Subject To Depletion Or Amortization




As at December 31		2017		2016

Canada	$	311	$	285
United States		4,169		4,913
	$	4,480	$	5,198

The following is a summary of the costs related to Encana’s unproved properties as at December 31, 2017:



		2017		2016		2015		Prior to 2015		Total

Acquisition Costs	$	245	$	104	$	29	$	3,965	$	4,343
Exploration Costs		2		5		8		122		137
	$	247	$	109	$	37	$	4,087	$	4,480

- Definition

Tabular disclosure of the results of operations for oil and gas producing activities for the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 27
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62352-109447

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62246-109447

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10.(a)(17)(ii),(c)(3)(ii)(A)(1))
-URI http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
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-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62259-109447

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-Publisher FASB
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-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62299-109447

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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62094-109447

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-Publisher FASB
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-Topic 932
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-Section 50
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
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-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 55
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=34713648&loc=d3e63071-109448

+ Details

- Definition

Tabular disclosure of the net quantities of an enterprise's interests in proved developed and undeveloped reserves of (a) crude oil (including condensate and natural gas liquids), (b) natural gas (including coal bed methane), (c) synthetic oil, (d) synthetic gas, and (e) other nonrenewable natural resources that are intended to be upgraded during the period as of the beginning of the period, changes in quantities during the period, and as of the end of the period.

+ References + Details

- Definition

Tabular disclosure of the future net cash flows relating to proved oil and gas reserves and oil and gas subject to purchase under long-term agreements in which the enterprise participates in the operation of the properties on which the oil and gas is located or otherwise serves as the producer. This information is presented in aggregate and for each geographic area for which reserve quantities are disclosed.

+ References + Details